在線閱讀 --自然科學版 2021年3期《磷酸擴孔對陽極氧化鋁薄膜光學性質的影響》
磷酸擴孔對陽極氧化鋁薄膜光學性質的影響--[在線閱讀]
姜浩, 寧曉藤, 盧建敏, 侯盼哲, 于素圓, 孫會元
河北師范大學 物理學院, 河北 石家莊 050024
起止頁碼: 260--264頁
DOI: 10.13763/j.cnki.jhebnu.nse.202102010
摘要
采用自制電解槽、氧極氧化裝置,并用磷酸腐蝕擴孔制備了陽極氧化鋁薄膜.通過掃描電子顯微鏡、紫外-可見漫反射光譜儀、熒光分光光度計等對樣品進行了表征.結果表明,隨擴孔時間從10min延長到30min,陽極氧化鋁薄膜的孔徑由39nm增大到69nm,光致發光強度降低,帶隙能由3.92eV降低到3.85eV.研究發現,腐蝕擴孔過程會導致薄膜中氧空位的數量發生變化,揭示了通過腐蝕擴孔調控氧化鋁薄膜中氧空位數量的可能性.實驗結果為獲得預期物性的陽極氧化鋁薄膜提供了一種可行的途徑.

Optical Properties of Anodic Aluminum Oxide Subject to Pore-enlargement in Phosphoric Acid
JIANG Hao, NING Xiaoteng, LU Jianmin, HOU Panzhe, YU Suyuan, SUN Huiyuan
College of Physics, Hebei Normal University, Hebei Shijiazhuang 050024, China
Abstract:
In this work,we firstly fabricate anodic aluminum oxide membrane in self-made electrolytic cell,and then widen the pores by corroding the membrane in phosphoric acid.The samples were characterized by scanning electron microscopy,ultraviolet-visible reflectance spectroscopy,and fluorescence spectrophotometer.The results show that as the time of pore-widening increase from 10 to 30min,the pore diameter of anodic aluminum oxide membrane increases from 39 to 69nm,the photoluminescence intensity slightly decreases,the optical band gap decreases from 3.92 to 3.85eV.It was found that the number of oxygen vacancies in the thin film changed during pore-widening,which revealed the possibility of controlling the number of oxygen vacancies in the thin film by pore-widening.The experimental results provide a feasible way to obtain the anodized alumina film with expected physical properties.

收稿日期: 2020-12-20
基金項目: 河北省自然科學基金(A2020205038,A2016205237)

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